import numpy as np

import PD.PdUtil
import PdUtil


def e_mask():
    # 创建一个 DataFrame 对象
    data = {
        'A': [1, 2, 3, 4, 5],
        'B': [6, 7, 8, 9, 10],
        'C': [11, 12, 13, 14, 15]
    }
    df = pd.DataFrame(data)
    condition_func = lambda x: x % 2 == 0

    print(df)


if __name__ == '__main__':
    import pandas as pd

    e_mask()
